Unity3d — — UGUI之Box Collider自适应大小

NGUI下给Sprite/image添加collider后能自适应大小，但是在UGUI下Collider是默认在（0，0）位置，size为0

因此写了个简单的脚本，效果如下（最后附代码）

1.如下图添加Box Collider 2D后的默认位置与大小

2.给需要的物体添加Script并运行后的效果：

代码：

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;

 public class BoxColliderAdjust : MonoBehaviour {

     public bool AdjustBoxCollider = false;
     private BoxCollider2D boxCollider2D;
     private RectTransform gameObject;
     // Use this for initialization
      void Start () {
         gameObject = this.GetComponent<RectTransform>();
         boxCollider2D = this.GetComponent<BoxCollider2D>();
     }

     // Update is called once per frame
     void Update () {
         if (boxCollider2D == null)
         {
             Debug.Log("can't find collider");
             return;
         }
         else
         {

             if (AdjustBoxCollider == true)
             {
                 boxCollider2D.offset = gameObject.rect.center;      //把box collider设置到物体的中心
                 boxCollider2D.size = new Vector2(gameObject.rect.width, gameObject.rect.height);    //改变collider大小
             }
         }
     }
 }

BoxColliderAdjust